52 
Mals Weiball 
out Apart from Ulva which, as a rule, is rich in nitrogen and phosphoric acid 
and Chorda , rich in potash, the quantities of nitrogen and inorganic matters are 
not very diverging in different kinds of seaweeds taken out of the water at the 
same time. 
Survey of the tables of analysis. 
Zostera: Table I. Quantity of water in eelgrass of different size, and in different parts, viz. fresh 
and brown leaves, fresh stalks and roots. 
Table II. Ashes and N in broad and narrow-leaved eelgrass. 
Table III. Eelgrass in an air-dried form in different seasons arranged according to its being 
gathered in spring, in summer and in winter; all from the shore of Alnarp. 
Table IV. The same, from other places. 
Table V. Variation of N, P 2 0 6 , Fe and ashes in leaves, stalks and roots at different times 
and different wind, from Alnarp. 
Table VI. The same, from Gothenburg. 
Table VII. Fresh eelgrass with 82 per cent, of water in different seasons. 
The curve fig. 1, page 13. N and P 2 0 6 , variation in different seasons. 
Ulva: Table VIII. Air-dried and fresh sea-lettuce partly from Alnarp I — III, partly from other 
places IV — VI; in different seasons. 
Table IX and fig. 2, Quantity of N, P 2 0 5 and Fe 2 0 2 in Ulva drifted to shore at different 
places during a west-north-westerly storm. 
Table X. N, ashes, K 2 0 and 01 in Ulva in different seasons. Alnarp. 
The curve fig. 3, page 21. N and P 2 0 5 , variation in different seasons. 
Fucus vesiculosus: Table XI. Quantity of water in different parts of fresh rockweed, viz. in yellow 
annual shoots, brown thallus, black stipe and in the whole plant. 
Table XII. Composition of the whole plant in an air dried form at different times, and 
averages for spring and for summer-autumn. 
Table XIII. Quantity of N in different parts of 13 different samples of rockweed from the 
yellow annual shoots to the stipe. 
Table XIV. N, P 2 0 5 and Fe 2 0 3 in yellow annual shoots, brown old leaf and stipe. 
Table XV. Ash constituents in the same parts of the plant, at different times. 
Table XVI. Average composition of fresh rockweed, the whole plant, in spring and in summer- 
autumn. 
The curve, page 28, indicates graphically the variation of N and P 2 0 6 in stipe, brown leaf 
and in yellow annual shoots. 
Fucus serratus: Table XVII. Composition of air-dried seaweed, the whole plant from different 
times and places. 
Table XVIII. The quantity of N and P 2 0 5 in yellow annual shoots, brown leaf and stipe; 
and in the whole plant. Samples from Gothenburg. 
Table XIX. Composition of fresh seaweed with ?5 per cent, of water in spring and in 
su m m e r-autu m n . 
Halidrys and Furcellaria: Table XX. Analysis of air-dried samples from different times. 
Ascophylhwt: Table XXI. Samples from the neighbourhood of Gothenburg at different times, 
partly in an air-dried form, partly in a fresh condition. 
Table XXII. Quantities of N, of ashes, and of fat in yellow annual shoots, fruits, old leaf 
and stipe at different times. 
Chorda: Table XXIII. Composition at different times, partly in an air-dried form, partly in a 
fresh condition. 
